Ok, so I'm not sure if the man affected with fh has Ff alleles or FF alleles. However, I think by the question that he has Ff alleles. So there is a 50% chance that the offspring will be affected by fh.
A shadow is a surface light cannot touch or reflect off of. Usually shadows appear when the main object is covering a light source. For example, lunar eclipses. Lunar eclipses cause a shadow over Earth because they block the main light source, The Sun from our point of view, casting a giant shadow over Earth.
Answer:
One reason, it causes global warming
Explanation:
It is a major source of carbon dioxide when it burns.Furthermore, the ash coal produces makes it impossible to get things clean.
Vitamins help them function as fats.